Kingdom Animalia Phylum Chordata | Class †Conodonta | |
Similar Polygnathus, Manticoceras, Platyclymenia, Cheiloceras, Conodont | ||
Ancyrognathus is an extinct genus of conodonts.
During the Famennian stage of the Late Devonian, a biologic event occurred (Upper Kellwasser Extinction of all Ancyrodella and Ozarkodina and most Palmatolepis, Polygnathus and Ancyrognathus).
References
Ancyrognathus Wikipedia(Text) CC BY-SA